New "SOLEX" 32mm Carburetor Woes / Rough Idle!!

[Mr. Okrasa]

Has anybody else experienced rough idling/stubbling, carbs wont synch, etc, etc with the new immitation "SOLEX" 32mm carbs that are coming out of China/India? Part of problem is because of the loose/sloppy throttleshafts. When they bore the carb for the throttleshaft, the bore is too large and allows air to bypass through the throttleshaft bore. This causes uneven idling, stubbling, "hunting", etc, etc. I solved this problem by installing silicone impregnated bronze bushings and removing the white plastic "O" rings that I think are there to make up for the sloppy bore! Once the bores are sleeved and reamed to the throttleshaft dimentions, you elimate the possibility of air "seeping" bypass this area hence much more imporoved engine performance! See this link below that shows detailed photos. Enjoy! Mr. Okrasa

http://ImageEvent.com/mrokrasa/carburetorssolexzenithweber/newsolex32mmrebush
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[gimmesomeshelter]

Hello-

You mentioned that part of the idling problem is related to the way the throttle shafts are mounted. Are there any other common problems we should know about?

Cheers,

Paul
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[splitpile]

Joe, what are you doing to keep the throttle shafts center IE butterfly. I have found on the sets I've done that you can not really tighten the linkage pieces or it will pull the shaft/butterfly one way or the other and cause them to bind.

I made some brass spacers to prevent this. Luckily I haven't had any with loose shafts except maybe one on my Bonneville engine has started to seep a little from the shaft now! But still starts and idles smoothy.
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[Flavio]

The same problems with mine...
After a friend machinist installed new brass bushings, (using some old VW valve guides) they became much better in respect to idling and also transition.
About the In and Out shaft play, that I think Splitpile is refering to, I've done nothing about it because with mine carburetors the described in/out play only "happens" when the throttle is almost fully open and also when fully open. I've considered that this is not a too bad thing... am I right about this ?

BTW, another thing: comparing the original jeting 32 Solex with this Indian copies, I've noticed that the small Idle Air Bleed is a 160 jet but the original has a 100 jet (1 mm). I've tried to put a 100 jet there...no way...too rich.

Also, I've found that the carbs work better with a 24 mm. venturi and a 120 or 117 Main jet.
Testing yet to find if a 45 idle jet is better than the stock 50.

Note: my engine has stock 36 Hp crank and cam.

[Mr. Okrasa]

[Rwoodshvac]

I have a set of the WW Solex Repro 32 carbs and i have a set or Repro Solex 34 PBICs from SCAT.
Both sets had way to much slop in the throttle shafts.

Since i have decided to use the 34 PBICs i sent them out to Joe Mr Okrasa to see if he could help them.

I must say i am Super Impressed with how they turned out. Before they were sloppy and rough feeling
Now after Joe's magic they are butter smooth almost like bearings were installed. NO SLOP what so ever.

This is one job that was undersold and over delivered
Thanks Joe

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[Vedderism]

Has anyone successfully installed and ran the WW 32’s with the jets they come with?

[Bub]

[Vedderism]